
The Recharge Zone Podcast
The Recharge Zone Podcast is the official podcast of the Edwards Aquifer Authority (EAA), a regional water management agency in South Central Texas. It focuses on the portion of the Balcones Fault Zone Edwards Aquifer that supplies water to about 2.5 million people across more than 8,000 square miles and eight counties. Episodes are designed to build knowledge about the Edwards Aquifer, its management, and related water issues. Listeners can learn about the EAA's work and why the aquifer is vital to the region.
Episodes

Season 7, Episode 3 | A Mission That Stands the Test of Time with EAA GM Roland Ruiz
30 years, 1 aquifer, and 3 pillars to the Edwards Aquifer Authority (EAA) mission - Manage, Enhance, and Protect the Edwards Aquifer. On this episode we celebrate where the agency has been and where it is going with EAA General Manager Roland Ruiz. Tune in as hosts Brent and Ann-Margaret recount the past with Roland, talk about how the agency has evolved, and what is on the horizon for the EAA, an

Season 7, Episode 2 | The Edwards Aquifer Conservancy
Hosts Brent and Ann-Margaret welcome Sara Beesley, Edwards Aquifer Authority (EAA) Chief Development Officer and Executive Director for the Edwards Aquifer Conservancy (EAC), as she shares insights about her new role and gives an overview of the EAC's nonprofit work and initiatives. For over the past 10 years the EAC, a 501(c)3 nonprofit organization set up exclusively for the benefit of the EAA,

Season 7, Episode 1 | Aquifer Chat: Facts, Myths, and Everything in Between
Welcome back to another season of the Recharge Zone Podcast! Hosts Brent, Logan, and Ann-Margaret gather together to discuss aquifer facts, myths, and everything in between. Listen along as they shed light on the fascinating characteristics of the Edwards Aquifer!

Season 6, Episode 6 | The Fundamentals of Hydrogeology with Jack Sharp
Explore the fundamentals of hydrogeology with EAA Principal Geoscientist, Logan Schmidt, as he discusses the world of groundwater with world renowned hydrogeologist Dr. John "Jack" M. Sharp. Dr. Sharp, professor emeritus in Geology at the University of Texas at Austin, is internationally recognized for his research on groundwater flow, karstic aquifers, urban hydrogeology, and the Edwards Aquifer.

Season 6, Episode 5 | The Science Behind Aquifer Sustainability
The Edwards Aquifer Authority Field Research Park (EAA FRP) is a hub for groundwater-related sustainability and aquifer behavior research where EAA staff are demonstrating and evaluating various land management practices and their potential effects on aquifer sustainability. The hypothesis driving the work is that the practices offer potential for improved soil health, added soil water holding cap

Season 6, Episode 4 | What do caves teach us about the Edwards Aquifer?
EAA Principal Geoscientist, Logan Schmidt, sat down with Dr. George Veni, Karst hydrogeologist, to discuss the cave features of the Edwards Aquifer that are mostly unseen and how hydrogeologists that study these caves gain insight into how the aquifer system works.

Season 6, Episode 3 | Past, Present, Future - 29 Years of Managing, Enhancing, and Protecting the Edwards Aquifer
Over the past decade, EAA General Manager Roland Ruiz has seen many initiatives come to fruition as imagination, innovation, and inclusion have been at the forefront of growing the agency into what it is today. Tune in as Roland reflects on where the agency has been and where it is going with hosts Ann-Margaret and Brent.

Season 6, Episode 2 | Amazing Edwards Aquifer Facts
Paul Bertetti, EAA Senior Director Aquifer Science Research & Modeling, sat down with hosts Brent and Ann-Margaret to discuss amazing facts you might not know about the Edwards Aquifer!

Season 6, Episode 1 | Edwards Aquifer Ecology
On this episode, Brent and Ashley, our guest co-host, discuss the importance of ecology with EAA's Jewell Cozort and Casey Cowan. Jewell and Casey share their knowledge of ecology, and how the interactions between organisms and their environment take shape within the Edwards Aquifer System.

Season 5, Episode 6 | 2024 Reflections
Listen along to Brent and Ann-Margaret as they close out the year with an episode all about the EAA's 2024 highlights. The new year will bring impactful initiatives for our agency as we continue to carry out our mission of managing, enhancing, and protecting the Edwards Aquifer!

Season 5, Episode 5 | The EAA Rebranded
On this historic episode, hosts Brent and Ann-Margaret sit down with Edwards Aquifer Authority (EAA) General Manager, Roland Ruiz; EAA Executive Director for Communications and Development, Michael De La Garza; and EAA Creative Manager for Communications and Development, Ed Flores, as they share how the EAA is rebranding. They will discuss how the EAA brand has evolved over the past 28 years, the

Season 5, Episode 4 | Agriculture Out West
On this episode, hosts Ann-Margaret and Brent catch up with Isabel Martinez, EAA Senior Permit and Conservation Coordinator, as she discusses the importance of agriculture out West and the EAA's Groundwater Conservation Grant Program.

Season 5, Episode 3 | 28 years of Managing, Enhancing, and Protecting the Edwards Aquifer
EAA General Manager Roland Ruiz met with hosts Brent and Ann-Margaret, earlier this month, to discuss aquifer conditions, managing through drought, and the evolution of the agency that has occurred over the past 28 years.

Season 5, Episode 2 | Highway to the Vadose Zone
The vadose zone, also known as the unsaturated zone, is a critical part of the research happening at the EAA Field Research Park (EAA FRP), and Logan Schmidt, EAA Senior Modeler, joins us on this episode to discuss this intriguing piece of the aquifer system. From defining what the unsaturated zone is to sharing the special techniques used to study this important area, Logan offers insight into ho

Season 5, Episode 1 | FRP Well Network
Monitoring groundwater quality and quantity has always been an important aspect of the Edwards Aquifer Authority's (EAA) mission and core value of science-based policy. The addition of the EAA's Field Research Park (FRP) property in 2019 provided a unique opportunity to closely study the behavior and characteristics of the aquifer system over the Edwards Aquifer Recharge Zone. In 2023, the EAA ins

Season 4, Episode 5 | The Edwards Aquifer Summit
The inaugural Edwards Aquifer Summit was held this past October, and featured informative presentations from EAA General Manager Roland Ruiz, EAA Deputy General Manager Marc Friberg, EAA Executive Director of Aquifer Management Services Mark Hamilton, and EAA Executive Director for Threatened and Endangered Species Scott Storment. Tune in as Brent and Ann-Margaret provide some recaps and highlight

Season 4, Episode 4 | The Internship Experience
The EAA has provided internship opportunities for a wide range of fields, from science to communications, and over the years many students have worked alongside EAA staff to gain enriching experiences that have set the foundation for their careers. Tune in to this episode, where hosts Ann-Margaret and Brent, interview Destiny, Karen, and Sarah about their internship experiences at the EAA, and whe

Season 4, Episode 3 | Precipitation Enhancement Program
For the past 20 years the EAA has taken a proactive approach to making rain clouds more productive by partnering with the Evergreen Underground Water Conservation District (UWCD) to perform cloud seeding operations. This initiative at our agency is known as the Precipitation Enhancement Program. The actual cloud seeding is performed by the South Texas Weather Modification Association (STWMA), wh

Season 4, Episode 2 | The Meadows Center with Robert Mace
On this episode of the Recharge Zone Podcast, hosts Ann-Margaret and Brent hit the road to interview Robert Mace in San Marcos, TX aboard a glass bottom boat! Learn about the The Meadows Center for Water and the Environment, the threatened and endangered species that live in the Edwards Aquifer, and more. Robert Mace is the Executive Director and Chief Water Policy Officer at The Meadows Center fo

Season 4, Episode 1 | The EAA Act
On this episode, Ann-Margaret and Brent visit with Darcy Frownfelter, EAA's longtime general counsel. Darcy discusses how the EAA came into existence through the EAA Act as well as some highlights of his career so far. The EAA Act created the Edwards Aquifer Authority (EAA) as a groundwater conservation district, which granted the EAA all of the powers, rights, and privileges necessary to manage,

Season 3, Episode 12 | Reflecting on 2022
This season on the Recharge Zone Podcast brought a lot of great guests talking about the Edwards Aquifer and the work of our agency. From our GM Roland Ruiz's discussion on drought management to the last episode where hosts Ann-Margaret and Brent welcomed Brock Curry to discuss his 26 year career at the EAA, and most recently saying farewell to our EAA board of directors' chair Luana Buckner. List

Season 3, Episode 11 | Cheers to Brock's EAA Career
Brock Curry EAA Deputy General Manager has had a memorable 26-year career at the EAA, from being one of the first employees hired at the agency to seeing the evolution of the EAA as a groundwater conservation district! Hosts Ann-Margaret and Brent sit down with Brock to reminisce on highlights, words of advice, and the lasting impression Brock will leave on the agency.

Season 3, Episode 10 | Drones, Drilling, and Boreholes
Research on the recharge zone has continued at the EAA Field Research Park in a big way this season with LiDAR drone surveys conducted by a PhD student from the University of Texas to help identify landform changes over time, EAA Scientists working with graduate students from the University of Texas at San Antonio to describe and log drill cuttings from research boreholes, and Nuclear Magnetic Res

Season 3, Episode 9 | Sampling Stories
On this episode, hosts Ann-Margaret and Brent are joined by EAA Senior Hydrogeologist Dr. Gizelle Luevano. She's conducted countless water quality samplings, from wells, rivers, and springs. Hear her field stories and how water quality sampling technology has evolved over the years as she's collected data from all across the EAA's jurisdiction!

Season 3, Episode 8 | ET - Not the Alien
ET, in this case evapotranspiration, is the elusive process by which water moves from earth's surface into the atmosphere, and hosts Brent and Ann-Margaret discussed this with EAA's Principal Geoscientist Marcus Gary. Learn about eddy covariance towers, and how they play an important role in understanding a myriad of observations occurring in the atmosphere and from the soil.

Season 3, Episode 7 | Drought Management
As this region is in the middle of a drought, hosts Brent and Ann-Margaret sit down with EAA General Manager Roland Ruiz to discuss drought management at the EAA. This episode includes a discussion about critical period management, aquifer conditions, and revisit the EAA's recently implemented strategic plan which focuses on furthering the long-term sustainability of the Edwards Aquifer through a

Season 3, Episode 6 | Soil Matters
Learn about the latest happenings at the EAA Field Research Park as hosts Ann-Margaret and Brent interview Thomas Marsalia and Matthew Rogers from the EAA Aquifer Sustainability Team. This episode is all about the implementation of land management techniques to slow and spread the infiltration of water across a landscape, improving soil microbiology, and researching hydrologic conductivity (aka th

Season 3, Episode 5 | The EAHCP Celebrates 10 Years of Protecting Species and Spring Ecosystems - Part 2
This episode is part 2 of the previous episode, where hosts Ann-Margaret and Brent interview Melani Howard with the City of San Marcos and Mark Enders with the City of New Braunfels to discuss the successes of the EAHCP as they relate to the threatened and endangered species, the rivers, and springs in their cities.

Season 3, Episode 4 | The EAHCP Celebrates 10 Years of Protecting Species and Spring Ecosystems – Part 1
Hosts Ann-Margaret and Brent sit down with Scott Storment, EAA Executive Director for Threatened and Endangered Species, as he discusses the Edwards Aquifer Habitat Conservation Plan from his perspective as the manager of the program. Tune in to learn about the programmatic aspects of the EAHCP, how it functions, and what's on the horizon for the future of the program. Part 2 of this episode will

Season 3, Episode 3 | The First Aquifer Education Center on the Edwards Aquifer Recharge Zone
Hosts Ann-Margaret and Brent welcome back Sarah Valdez, EAA Senior STEAM Outreach Educator, and welcome Mike De La Garza, EAA Executive Director for Communications and Development, to discuss the highly anticipated EAA Education Outreach Center (EAA EOC). Mike and Sarah walk us through the partnership between the EAA and Morgan's Wonderland Camp, and all the awe-inspiring interactive exhibits the

Season 3, Episode 2 | The Evolution of Regulation at the EAA - Forging a Path of Regulation Through Service
The EAA officially began as regulatory agency back in 1996, and the regulatory programs that relate to groundwater production and protection are crucial to the overall mission of the EAA. Tune in to this episode as hosts Brent and Ann-Margaret interview EAA Executive Director for External and Regulatory Affairs, Marc Friberg, about regulation through service, how the agency works with other entiti

Season 3, Episode 1 | Looking Ahead In 2022 with General Manager Roland Ruiz
In this episode, hosts Ann-Margaret and Brent welcome back EAA GM Roland Ruiz to recap all the progress the agency made in 2021 and get his perspective on the Next Generation and Beyond strategic plan as he celebrates 10 years of being the General Manager for the EAA. From the highly anticipated grand opening of the EAA Education Outreach Center to all the research taking place at the EAA Field Re

Season 2, Episode 12 | State of the Edwards Aquifer
For our final episode this season, and last one for 2021, we wanted to look at how the Edwards Aquifer conditions are doing this year compared to previous years, in a segment we're calling the State of the Aquifer with EAA Director of Aquifer Science, Paul Bertetti.

Season 2, Episode 11 | Fact or Fiction: Aquifer Edition
Learn about some myths and impressive facts about the Edwards Aquifer as hosts Ann-Margaret and Brent discuss what is fact or fiction when it comes to information they've heard over the years while working at the EAA.

Season 2, Episode 10 | Aquifer Science Visualized
What is GIS and how is it used at the EAA? On this episode, hosts Brent and Ann-Margaret discuss the realm of Geographic Information Systems, aka GIS, with Taylor Bruecher, EAA Hydrologic Coordinator. Find out how we display data for the public so they can view it, identify patterns to answer questions, and pose more questions based on their understanding.

Season 2, Episode 9 | Quality Data Reigns Supreme
Why is collecting environmental data about the Edwards Aquifer important and how is it stored? On this episode Bryan Anderson, EAA Data Management Director, discusses with hosts Brent and Ann-Margaret the continuous data collected by the EAA Data Management Department. This department oversees 151 active monitoring sites where they collect data, process that data, and disseminate it to the public.

Season 2, Episode 8 | EAA's Plan to Advance Aquifer Education at its Anticipated Education Outreach Center (EOC)
On this episode hosts Ann-Margaret and Brent interview Sarah Valdez, EAA STEAM Outreach Educator, about the EAA Education Outreach Center located at Morgan's Wonderland Camp. Tune in as she discusses the one of a kind exhibits that will go in the 3,500 square foot space, which will feature unique learning experiences that will broaden imaginations through participation in innovative STEM opportuni

Season 2, Episode 7 | A Well Told Story About Groundwater Protection
On this episode hosts Ann-Margaret and Brent interview Mariah Bonham, Groundwater Protection Coordinator, regarding the groundwater protection initiatives at the EAA – ranging from the importance of well registration to historic records serving as a tool for finding abandoned wells throughout the EAA jurisdiction.

Season 2, Episode 6 | A 25-year EAA perspective: Luana Buckner and Carol Patterson
We've officially made it to the anniversary month that launched the EAA into existence back on June 28, 1996, and on this episode hosts Ann-Margaret and Brent have two very special guests that have held longstanding positions on the EAA board since the EAA began operations, EAA chairman Luana Buckner, representative for Medina / Atascosa Counties, known as District 13 and board member Carol Patter

Season 2, Episode 5 | I.Y.C.K. Animal of the Year – Cave Beetles
As you all may know by now this year is International Year of Caves and Karst, and the 'cave beetle' has been designated as animal of the year. Hosts Ann-Margaret and Brent discuss two endangered beetle species with Edwards Aquifer Habitat Conservation Plan (EAHCP) Department's Kristy Kollaus, EAA Environmental Scientist, and Kristina Tolman, EAA Habitat Conservation Coordinator.

Season 2, Episode 4 | Celebrating the International Year of Caves, Karst, and the Edwards Aquifer
On this episode, hosts Ann-Margaret and Brent speak with Paul Bertetti, EAA Director of Aquifer Science, about characteristics of karst and how it relates to the Edwards Aquifer. Also, Paul provides an overview of how the aquifer recharges and discharges, and how the index wells in Bexar County and Uvalde county are important to monitoring the Edwards Aquifer System.

Season 2, Episode 3 | Regulation Through Service - A Community Approach to Aquifer Stewardship
On this episode, hosts Ann-Margaret and Brent speak with Earl Parker, EAA Director of Regulatory Affairs, about aquifer management and protection programs where the general principles outlined in the EAA Act were the catalyst for key regulatory programs, groundwater withdrawal management, water quality and recharge zone protection. Listen and learn more about the details of these programs, and how

Season 2, Episode 2 |Will berm and swales be winning water retention practices on the Recharge Zone?
Hosts Brent Doty and Ann-Margaret Gonzalez speak with EAA Executive Director of Aquifer Management Services, Mark Hamilton, about long-term research for groundwater systems, surface water systems, and soil and land management practices out at the 151-acre EAA Field Research Park located in the Cibolo Creek Basin on the Edwards Aquifer Recharge Zone.

Season 2, Episode 1 | What's in store for the EAA?
Hosts Brent Doty and Ann-Margaret Gonzalez speak with EAA General Manager, Roland Ruiz, as he further expands on the Next Generation initiative as a way to broaden the EAA's opportunity to partner and collaborate, discusses a land management demonstration site that is underway at the EAA Field Research Park, and highlights the future EAA Education Outreach Center at Morgan's Wonderland Camp.

Episode 5 | What exactly is aquifer modeling?
On this episode, hosts Brent Doty and Ann-Margaret Gonzalez speak with Jim Winterle, EAA Director for Modeling, about aquifer modeling in which water well pumping and aquifer recharge data collected from over the past 80 years is used to simulate outputs like the springflows at Comal and San Marcos Springs or the water levels at index wells J-17 in Bexar County and J-27 in Uvalde County. Learn how

Epsiode 4 | Catfish, Salamanders, Amphipods, oh my!
Did you know? The underwater world of the Edwards Aquifer has predator species, some endangered, that dwell in the dark depths that are found nowhere else in the world? Also, discover the innovative way the Edwards Aquifer Habitat Conservation Plan is reducing the presence of the invasive, armored suckermouth catfish in San Marcos Springs Aquatic Ecosystem. Learn all about these species on this ep

Episode 3 | Reflecting on the EAPP and The EAA's Next Generation Legacy Initiative
On this episode of the Recharge Zone Podcast hosts Ann-Margaret Gonzalez and Brent Doty speak with Thomas Marsalia, EAA Aquifer Protection Supervisor, to reflect on the successes of the Edwards Aquifer Protection Program (EAPP) and how the EAA will continue to serve the program. Also, EAA General Manager, Roland Ruiz, makes his first feature on the podcast and discusses with Ann-Margaret the EAA's

Episode 2 | ASR, not to be confused with ASMR
Aquifer Storage and Recovery, aka ASR, is a water resource management technique for storing or injecting water underground for recovery in the future – typically during dry periods. In this episode our podcast hosts Ann-Margaret and Brent discuss the topic of ASR with Jenny Adkins-Schudrowitz, EAA Hydrogeologist, and Javier Hernandez, EAA Special Programs Liaison.

Episode 1 | What is the Edwards Aquifer System?
In Episode 1 Ann-Margaret and Brent breakdown the facts about the Edwards Aquifer System referencing Maddy's interviews from attendees that visited our EAA booth at the San Antonio Stock Show and Rodeo this past February.











